70-75°

What are the types of AAS? What does ICP-OES measures? kzbin.info/www/bejne/n52bmHZ-n7CDjNE

rightt I thought my speakers were damaged

@@zaidyounas1602 same here lol

I was searching for this comment and was shocked why no was complaining about this disgusting audio.

The standard solutions are made using a stock solution of a known concentration. for example, if you have 1 gram per litre of lead sulphate stock solution ( add 1 g lead in 1 litre water), you can make a standard solution with 0.5 g/l by adding 1ml stock and 1ml water. In a similar way can make 0.1, 0.2,..., 0.9 g/ l standards by adding respective ratios of water and stock solution. Hope it helps...

⁠​⁠@@muthuarunachalam5257I have a question, would the standard solutions made like this be 0.1…0.9 g/L lead sulphate solution or lead g/L?

1. The distilled water to added until the total volume becomes 50ml or 100ml(Mostly 50ml or 100 ml volumetric flasks are used.) You use only 50ml for the analysis. In case if you did anything wrong then the remaining solution can be used for further analysis. 2. But I believe he used 50ml volumetric flask and used all the sample. 3. He might have diluted the sample with equal amount of water while doing AAS. 4. In 1ml of sample .78 g is present so .78ug/ml. Thus in 50 ml sample 50 times .78 ug which equals 39 ug in 50 ml. Or 39 ug in 1g of soil initially used. Hope this helps...